code: def output_state_dimension(self) -> int:
      return self.__state_dimension
  
file_path: ptgnn/ptgnn/neuralmodels/gnn/messagepassing/gatedmessagepassing.py
imports: import torch
  from torch import nn
  from typing import Dict, List, Tuple
  from ptgnn.neuralmodels.gnn.messagepassing.abstractmessagepassing import AbstractMessagePassingLayer
label_desc: Use image node_id 4 for calling the GatedMessagePassingLayer obj's underlying member method code with example usage: obj.output_state_dimension() and returns: self